Thermal Conductivities of Organic Vapor Mixtures

Abstract

The thermal conductivities of binary mixtures of organic vapors have been investigated in the temperature range 60—125°C. When nonpolar vapors of similar viscosity and molecular weight are used, the variation of conductivity with composition of the mixture is roughly linear. Mixtures of nonpolar and strongly polar vapors, on the other hand, exhibit pronounced maxima in the conductivity vs composition curves. The difference in behavior is due to the strong interaction between polar molecules on collision.